Electromagnetic Biometric Detection via Dermal Fluorescence
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Solution Overview
Problem
Biometric identification systems are vulnerable to spoofing due to their reliance on permanent and unique physical characteristics, which can be mimicked by artificial samples, and lack effective methods for distinguishing between live and fake biometric samples, especially in portable devices.
Innovation Solution
A system that applies an electromagnetic field to stimulate and excite molecules on the dermal surface, causing compounds to fluoresce, allowing for the detection and analysis of sweat gland pores, which provides unique biometric identification and proof of liveness by analyzing the locations, variations, and fluctuations of these pores.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromagnetic field is applied to stimulate molecules on dermal surface, then liveness detection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent replaces traditional mechanical or optical sensing systems with an electromagnetic field-based system. The electromagnetic field interacts with molecules on the dermal surface to induce fluorescence, providing a non-contact method for liveness detection that avoids the complexity of mechanical sensors while improving detection accuracy.
Solution Approach 2:
The patent utilizes changes in electromagnetic field parameters (frequency, intensity, duration) to optimize the stimulation of molecules on the dermal surface. By varying these parameters, the system achieves effective fluorescence induction for liveness detection without requiring overly complex hardware configurations.
2Reliability
If sweat gland pores are detected for biometric identification, then authentication security is improved, but measurement precision requirements increase
Solution Approach 1:
The patent exploits fluorescence emission (a form of light/color change) from molecules on the dermal surface when stimulated by electromagnetic fields. This fluorescence signal provides a distinct visual marker that enables precise detection of sweat gland pore locations, enhancing both authentication security and measurement precision simultaneously.
Solution Approach 2:
The patent introduces fluorescence as an intermediary signal between the electromagnetic field stimulation and the detection of sweat gland pores. This intermediary mechanism amplifies the biological signal, making it easier to detect and measure with high precision while maintaining strong authentication security.
3Reliability
If electromagnetic field stimulation is used to excite molecules, then biometric uniqueness is improved, but energy consumption increases
Solution Approach 1:
The patent employs periodic or pulsed electromagnetic field application rather than continuous stimulation. This periodic action allows the system to achieve effective molecular excitation and fluorescence induction while minimizing overall energy consumption, as the field is applied only during specific detection cycles rather than continuously.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances security by providing a unique and dynamic biometric measure that is difficult to replicate, effectively differentiating between live and artificial samples, while being suitable for portable devices due to its compact design.
Implementation Method 1
applying an electromagnetic field to stimulate and excite the molecules associated with an individual's dermal surface and cause compounds within the molecules to fluoresce
Data Source
AI summary
An apparatus, method and system are provided for sensing at least one biometric measure of an individual. An electrical current flows through an electrode to induce an electromagnetic field. The electromagnetic field stimulates and excites the molecules associated with the sweat gland pores and causes molecular compounds to fluoresce. An image of the fluoresced dermal surface is obtained and a biometric function is performed with data derived from the image. Alternatively, sweat gland pore biometric information may be derived from variations, fluctuations or disturbances to the electromagnetic field induced by the electrical current.